Revert "[fx] Preserve Fx graph node order in partitioner across runs (#115621)"
This reverts commit 25c74a93cdf67545a4e3e1bedf2dbabbddfc5845.
Reverted https://github.com/pytorch/pytorch/pull/115621 on behalf of https://github.com/izaitsevfb due to depends on #120076, which needs to be reverted ([comment](https://github.com/pytorch/pytorch/pull/115621#issuecomment-1986324796))
